This is Warren Kwok's Internet note pad, electronic diary, online rubbish journal, whatever you might name it ! It is an archive of my random thoughts in a chronological order. I am not good at reporting boring things and change them to lively. If you find this blog boring, sorry that it is your problem.

2011/05/29

IPv6 Cache Servers + IPv4 Forwarders

Our company has implemented an native IPv6 link and we now have an IPv6 only network. However, on testing through test-ipv6.com, the score for IPv6 stability and readiness was just 7/10. The problem is that the two DNS resolvers riding on IPv6 offered by the serving ISP are just caching servers which pass queries to two forwarders. The forwarders can only support IPv4. We are surprised to note that an IPv6 capable ISP does not offer full IPv6 connectivity to its name resolving systems. This will affect our global IPv6 reachability.

As a small customer, we do not have the power to ask the ISP to change its network architecture. We can only just alert the ISP hoping that it will do something positive. On the other hand, the cost of setting up our own IPv6 or dual-stack resolvers is insignificant.

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About Me

This planet is sick. Just look at the place I am living. The global warning effect has turned Hong Kong into a place with no winter. I like winter more than any other seasons. There is a big price to pay if we continue to ignore our global environment. Please, for the sake of your next generation, consume less paper, less fuel and do not use excessive plastic bags.
A simple life is definitely better than a luxurious life.